Was cleaning the interior of my Sierra and decided to check the oil. I have 3,000 miles so far on the Quaker State Ultimate Durability 0w20 and microgreen filter. While I know it's noting scientific the oil on the dipstick still looks the same color as it did coming out of the bottle. I made the switch soon after I bought the truck at 800 miles. The last 3,000 have been pretty hard driving making sure to break in the 6.2L as well as just enjoying the power of it around town. I like the microgreen the moment I received it $10 on Amazon and heavier duty than the others. The truck has had zero issues with it. I came from a diesel so maybe I'm overly impressed but I'd figure that with 3000 miles the oils wouldn't at least still look new.

